Nowadays, more and more people like to add some flowers and plants at home. However, many flower-cultivation fans have no idea how to grow flowers. Where is the problem? Let me tell you a few taboos in the cultivation of flowers: **avoid Some flower growers are pursuing the whole thing, regardless of the species, they will move home when they see it. This not only wastes a lot of time, but also brings in some inappropriate flowers into the home, polluting the environment and damaging health. For example, some poisonous flowers are easily exposed to poisoning. Some floral odors have an effect on the human nervous system and can easily cause respiratory or even allergic reactions. Spiked plants also pose a certain threat to human health, and so on. All in all, family gardening should not be greedy for the sake of perfection, regardless of whether it is good or bad, we should choose some species that are small in size, beautiful in appearance, and harmless to humans. Second bogey Some flower growers see one love and one flower. There is no theme in flowering, and the flowers in the home are exchanged for changes. This is absolutely undesirable in flowering. The reason is that a kind of renewal is too fast and the time for planting is too short. It is difficult to cultivate trees with a beautiful shape and high ornamental quality. The second reason is that each kind of flower is tasteless, which is not conducive to raising the level of flowering. In the end, it is still a blind person who will not grow flowers. Therefore, flower growers only have to choose one or two flowers, carefully cultivated, in order to truly feel the joy of flowering. Third bogey Nowadays, the knowledge and new technologies of the flower cultivation industry are constantly emerging. However, most flower growers still stick to the traditional conservation methods. They are not good at using new technologies and new equipment, such as the use of utensils, fertilizer management, and seedling cultivation. Now soilless cultivation is very common, odorless flowers and fertilizers and various flower tools are also widely promoted. Must be advancing with the times. Fourth bogey Like humans, flowers are alive and need to be cared for. Many nurturing friends do not have a careful and tenacious attitude toward these beautiful and fragile lives. They are reluctant to use their brains, do not like to study flower cultivation knowledge, and have always been an illiterate person who does not know how to cultivate flowers and are not properly managed. The second is unwillingness to use hands, and does not want to spend too much time and energy on flowers. After buying the flowers, he was left behind and suffered from thirst for a long time and suffered from insect pests. In this way, even the best flowers will gradually wither. The third bogey Contrary to the above situation, some flower growers loved flowers too much and itched it when they did not play with it. Some watering and fertilizing are not regular. When you think of it, you pour it and make the flowers go through fat and die. Some of them move the flowerpots and move them around. They can move several places a day, and they have to adapt to the environment. Disrupted the normal growth pattern. In the long run, it is not strange to forget about flowers. There are a few pots of flowers in the house. The heart is like nothing wrong with it. However, the flowers have the same growth rules as humans. If it is frequently interrupted when it needs to rest, it will naturally feel tired and grow badly. The sixth bogey There are some flower lovers who are pursuing a name for money. They believe that those who cultivate flowers will have flowers that are well-priced and expensive. Under such psychological control, they do not hesitate to spend a lot of money to buy famous flowers. As a result, due to the lack of good conservation conditions and management techniques, the flowers were soon to be bought and died, destroying these valuable flowers and wasting money. This is a conceptual misunderstanding. The correct approach should be to start with ordinary, lower-grade species and gradually explore the laws and techniques of flower cultivation. After achieving a certain level of technology and then gradually buying more expensive types, so successful grasping only. Flower is a beautiful gift of nature. It can not only decorate our environment beautifully, but also bring us different enjoyment of the beauty. Family flowering is a kind of life. Flowers can enrich our life. As a boring life adjustment, it is a leisurely cultural life. Urine analyzer is an automated instrument for determining certain chemical components in urine. It is an important tool for automated urine inspection in medical laboratories. This instrument has the advantages of simple and fast operation. However, improper use of urine analyzers and many intermediate links and influencing factors directly affect the accuracy of automated analysis results, which will not only cause errors in experimental results, but even delay diagnosis. Therefore, operators are required to understand the principles, performance and precautions of automated instruments. And the knowledge of influencing factors and other aspects are fully understood, and the correct use of automated instruments can make the results obtained by the urine analyzer more reliable and accurate. Medical Urine Analyzer,Semi Automatic Urine Analyzer,Urine Analyzer and Strips,Accurate Urine Analyzer Jilin Sinoscience Technology Co. LTD , https://www.contoryinstruments.com
application
In the 1950s, a single dry chemical test strip method was used to measure protein and glucose in urine, and the changes in the color of the test strip were observed with the naked eye and compared with the standard plate to obtain the corresponding values. In the 1980s, due to the high development and widespread use of computer technology, automated urine analyzers also developed rapidly, gradually developing from semi-automatic to fully-automated. Urine analyzers are often divided into two categories according to the test items: â‘ 8-11 screening combined urine test strips mainly used for newly diagnosed patients and health examinations. The eight test items included protein, glucose, PH, ketone bodies, bilirubin, urobilinogen, red blood cells (occult blood) and nitrite; in addition to the above eight tests, urine leukocyte test was added to the nine test items. On the basis of 9 of the 10 urine analyzer testing items, the urine specific density test was added. 11 testing items have added vitamin C testing. â‘¡It is mainly used for the observation of the curative effect of the diagnosed diseases, such as the combination test strip of PH, protein and occult blood (red blood cells) for kidney disease; the combination test strip of PH, sugar and ketone body for diabetes; the combination of bilirubin and urobilinogen for liver disease test tape.
principle
This type of instrument is generally controlled by a microcomputer, and the color change on the test strip is measured semi-quantitatively by using a spherical integrator to receive dual-wavelength reflected light. There are several reagent pads containing various reagents on the reagent strip, each of which reacts independently with the corresponding components in the urine, and displays different colors. The depth of the color is proportional to a certain component in the urine, and there is another in the reagent strip" Compensation pad", as the urine background color, compensates for the errors caused by colored urine and instrument changes.
Put the reagent strip with urine adsorbed in the colorimetric tank of the instrument, and the various reagent pads that have produced chemical reactions on the reagent strip are illuminated by the light source, and the reflected light is received by the spherical analyzer, and the photocell of the spherical analyzer is reflected. Irradiate with dual-wavelength light (measurement light passing through the filter and a reference light), and the selection of each wavelength is determined by the detection item.
The instrument automatically calculates the reflectance according to the following formula, and then compares it with the standard curve, and automatically finds and prints the corresponding results of various components. If the content of a certain component in the urine is high, the reflected light of the corresponding reagent pad is dark, otherwise it is strong.
Reflectance fraction: R(%)=Tm.Cs/TsCm×100%
In the formula, R(%) is the reflectivity; Tm is the reflection intensity of the reagent pad to the measurement wavelength; Ts is the reflection intensity of the reagent pad to the reference wavelength; Cm is the reflection intensity of the calibration pad to the measurement defect length; Cs is the calibration pair. Reflection intensity at the reference wavelength.